摘要:
The invention relates to pigment preparations containing as principal ingredients: A) at least one organic or inorganic pigment in the form of fine particles, B) a dispersing agent on the basis of arylsulfonic acid-formaldehyde condensation products or of oxalkylated phenols, C) an alkali-soluble acrylic resin, D) an inorganic or organic base and E) water.
摘要:
The invention relates to polymer particles that contain dye. The polymer particles contain at least one dye in a matrix of an essentially water-insoluble polymer and have an average particle size of between 5 and 500 nm and a particle size distribution spread (variance) of
摘要:
A process for detecting marked mineral oils by treating the marked mineral oil with an extracting agent containing water, a solvent and a base, in which use is made as the marking agent of an azo dye of formula (I), in which ring A may be benzo-anellated and l is 1 or 2, m is 1 to 4, X1 is hydrogen, C¿1?-C4-alkyl, cyano, nitro or possibly substituted phenylazo; X?2¿ is hydrogen, C¿1?-C4-alkyl, cyano, nitro, C1-C4-alkoxy or C1-C16-alkoxy carbonyl; X?3¿ is hydrogen, C¿1?-C4-alkyl, cyano or C1-C16-alkoxy carbonyl and X?4¿ is hydrogen, hydroxy, possibly substituted C¿1?-C8-alkyl, C1-C4-alkoxy, amino, C1-C4-dialkyl amino or possibly substituted C1-C16-monoalkylamino. A partially or completely water-miscible organic solvent is used as the solvent and the base is an alkaline or alkaline earth hydroxide, an alkali carbonate or a quaternary ammonium hydroxide. The invention also relates to the use of azo dyes as marking agents for mineral oils and novel azo dyes.
摘要:
The invention concerns the use, as markers for hydrocarbons, of leucotriarylmethanes of formula (I) in which Z is an aromatic carbocyclic or heterocyclic group and R?1, R2, R3 and R4¿ are hydrogen, optionally substituted C¿1?-C16 alkyl, optionally substituted phenyl or optionally substituted naphthyl. The invention also concerns hydrocarbons containing such leucotriarylmethanes and a method of detecting leucotriarylmethanes in hydrocarbons.
摘要:
The invention relates to a method for producing aqueous polymer dispersions containing colorants by radical aqueous emulsion polymerisation of ethylenically unsaturated monomers in the presence of radical-forming initiators. At least a proportion of the monomers is used in the form of an oil-in-water emulsion E1 whose disperse phase contains at least one oil-soluble colorant. The inventive method is characterised in that the disperse phase of E1 is essentially made up of colorant-containing monomer droplets with a diameter
摘要:
A process for detecting marked mineral oils by treating the marked mineral oil with an extracting agent containing water, a solvent and a base, in which use is made as the marking agent of an azo dye of formula (I), in which ring A may be benzo-anellated and l is 1 or 2, m is 1 to 4, X1 is hydrogen, C¿1?-C4-alkyl, cyano, nitro or possibly substituted phenylazo; X?2¿ is hydrogen, C¿1?-C4-alkyl, cyano, nitro, C1-C4-alkoxy or C1-C16-alkoxy carbonyl; X?3¿ is hydrogen, C¿1?-C4-alkyl, cyano or C1-C16-alkoxy carbonyl and X?4¿ is hydrogen, hydroxy, possibly substituted C¿1?-C8-alkyl, C1-C4-alkoxy, amino, C1-C4-dialkyl amino or possibly substituted C1-C16-monoalkylamino. A partially or completely water-miscible organic solvent is used as the solvent and the base is an alkaline or alkaline earth hydroxide, an alkali carbonate or a quaternary ammonium hydroxide. The invention also relates to the use of azo dyes as marking agents for mineral oils and novel azo dyes.
摘要:
The invention relates to polymer particles that contain dye. The polymer particles contain at least one dye in a matrix of an essentially water-insoluble polymer and have an average particle size of between 5 and 500 nm and a particle size distribution spread (variance) of
摘要:
The invention relates to a dispersant which can be obtained by reacting (i) a di- or polyfunctional isocyanate with (ii) a polymeric compound which has an XH group at the chain end, wherein X is COO, O, S or NR?1, and R1¿ is either H or a C¿1? to C6 alkyl group, and either with (iii) a homopolymer of a monomer selected from N-vinyl amides, N-vinyl lactams, vinyl- or allyl-substituted nitrogenous heterocyclic compounds, said homopolymer having a YH group at the chain end, or a copolymer of one or several of the above-mentioned monomers and optionally additional monomers, whereby Y is COO, O, S or NR?2, and R2¿ is H or a C¿1? to C6 alkyl group; or with (iv) an organic phosphonic acid ester having a YH group, whereby Y has the above-mentioned meaning. The dispersant is especially suited for dispersing pigments and for producing inkjet inks.
摘要:
The invention relates to pigment preparations containing as principal ingredients: A) at least one organic or inorganic pigment in the form of fine particles, B) a dispersing agent on the basis of arylsulfonic acid-formaldehyde condensation products or of oxalkylated phenols, C) an alkali-soluble acrylic resin, D) an inorganic or organic base and E) water.